Amid Japan’s growing data tampering scandal, Nippon Steel wants to reinforce quality audit systems for its subsidiaries as part of its group-wide efforts to ensure quality assurance, he said, without elaborating.

“We don’t have to take any fresh actions hastily as we have been making steady efforts in quality assurance,” Sakae said.

Tohoku Electric Power Co was the latest Japanese corporation to say it had uncovered cases of data tampering, broadening the scandal that was kicked off in October by Nippon Steel’s smaller rival Kobe Steel Ltd.

Kobe Steel has admitted that about 500 of its customers have received products with falsified specifications, part of the fallout from one of Japan’s biggest industrial scandals.

Kobe Steel and the data scandal aside, Japan’s steelmakers are enjoying the best market conditions in at least three years as steel prices rise with construction in full swing for the 2020 Olympics in Tokyo and automakers boosting production.

Nippon Steel, the world’s fourth-largest steelmaker, is projecting a recurring profit of 300 billion yen ($2.7 billion) for the current financial year to March 2018, up 72 percent from the previous year.